Quote Originally Posted by Virus View Post
The servers have been shutdown, so I assume you are trying to connect to a custom one. There are actually several checksums throughout the save data (most of which are just a standard CRC32). The data you are trying to edit has a checksum at offset 0x20. The checksum is calculated over 0x111C bytes of data, starting at offset 0x24 and ending at 0x1140.
Thank you!!! Finally after about 10 days of research someone who can answer me and explain me in a simply way how this works. Thank you again!